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TV Size Distance Calculator app icon

What size TV for your room? Size and viewing distance calculator

Enter how far you sit and get the TV size that fits, or enter your TV size and get the best place to sit. Results cover 720p, 1080p, 4K and 8K, in metric or imperial, with the viewing angle and a to-scale diagram of your room.

  • 720p to 8K
  • Metric & imperial
  • Room diagram
  • 15 languages
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Two questions, both directions

Resolution matters

Higher resolutions let you sit closer before you can see individual pixels, so the recommendation changes between 720p, 1080p, 4K and 8K. The app shows the viewing angle for the optimal result and explains how each number is calculated.

Your units, your room

Switch between centimetres and inches; screen sizes stay in inches because that is how TVs are sold. A to-scale room diagram shows the screen and the viewing cone from your seat, and the app also gives the screen's width and height for the size it recommends.

Questions

What size TV should I get for 3 metres (10 feet)?
With the app's 4K setting, a 3 m seat gives 80 inches at the minimum, 95 inches as the optimal size and 115 inches or more at the top. Those 4K figures aim for the wide, cinema-like view THX recommends; at 1080p the same seat gives 48 to 80 inches, with 60 as the optimal size.
How far should I sit from a 55-inch 4K TV?
Between 1.40 and 2.10 metres (4.6 to 6.9 feet), with about 1.75 m (5.7 feet) as the optimal seat. For a 1080p set of the same size the range moves back to 2.10 to 3.49 metres.
Why does resolution change the answer?
At a given distance a sharper picture lets the screen fill more of your view before pixels become visible, so higher resolutions allow a bigger screen or a closer seat.

Free on Google Play, supported by ads. Read the TV Size Distance Calculator privacy policy. Questions or a bug? Write to support@tahatec.com.